"宁"可以作为姓，读作"níng"。

（）属于女职工负重劳动引起的症状。

A、子宫后倾

B、子宫下垂

C、内分泌失调

D、痛经

Complete the following passage with the words or phrases in the box. Each can only be used once（将下列单词或词组填入空格。每空格限填一词，每个单词或词组只能填一次.:（共8分.

Everybody knows that it is dangerous to cross the street without looking both ways in China. However, I had a different experience in Berkeley, a beautiful city in California, US.

I didn’t know what to do when I had to cross the roads   小题1:   my first couple of days there: I wondered whether I should let the car go first or not? Based on my old experience back in China, I would certainly let the car go. “Who wants to be knocked down by a car?” I thought to   小题2:  .

One day, I was checking for cars while I was waiting to go to the other side of the road. An SUV came fast toward me, so I stopped and   小题3: . However, to my great surprise, the car stopped right in front of me. To be honest, I was a little confused because in China drivers usually try hard to drive as    小题4:   as possible to cross the road before people step out. Not knowing what to do for a moment, I saw no sign the car was going to move, so I offered a “signal’ to let him go first.

场景（四）　　某宾馆地下1层，地上10层，框架剪力墙结构。空间功能划分为：地下室为健身房、洗浴中心；首层为大堂、商务中心、购物中心;2层至3层为餐饮，4层至10层为客房。　　部分装修项目如下：　　（1）健身房要求顶棚吊顶，并应满足防火要求。　　（2）餐饮包房墙面要求采用难燃墙布软包。　　（3）客房卫生间内设无框玻璃隔断，满足安全、美观功能要求。　　（4）客房内墙涂料要求无毒、环保；外观细腻；色泽鲜明、质感好、耐洗刷的乳液型涂料。　　（5）饮用热水管要求采用无毒、无害、不生锈i有高度的耐酸性和耐氯化物性；耐热性能好；适合采用热熔连接方式的管道。　　根据场景（四），回答下列问题。

餐厅墙面采用的难燃墙布，其（ 　）不应大于0.12mg/m3。

A．苯含量

B．VOCs含量

C．二甲苯含量

D．游离甲醛释放量

海关估价是指海关按照国家规定，对申报进口的商品价格进行审核，以确定或估定其完税价格。（）

涂装作业完毕后，必须继续通风并至少保持到涂层实干后方可停止。在停止通风10分钟后，最少每隔（）小时检测可燃性气体浓度一次，直到符合规定，方可拆除警戒区。

A、1

B、1.5

C、2

D、2.5